SU1215947A2 - Inter-machine work accumulator of automatic machine line - Google Patents

Description

The invention relates to a machine tool industry, namely, to step-by-step storage conveyors, which can be used as initial, intermediate or final drives of workpieces on automatic lines.

The object of the invention is to increase the reliability and durability of the operation of the inter-storage drive.

FIG. 1 schematically shows the proposed inter-rack drive in the initial position; in fig. 2-6 - drive in consecutive full cycles of work on the mixing, enie products; in fig. 7 is an electrical circuit of the inter-drive accumulator for the last three positions: p-2, p-1, p.

The drive contains a transport rod 1 with prisms 2 for stacking products 3, levers 4, sensors 5 and 6 for the presence of products on the prisms of the rod positions 20 p-2, p-1 preceding the last, sensor 7 for the presence of products at the last position along the transport of products, elevators 8, sensors 9-11 of the lower position and 12-14 of the upper position of the elevators at the positions respectively p-2 P-1, p, sensor 15 of the initial position of the transport rod with closing contact 15.1, electromagnets 16-18 of the lifts (Fig. 7) respectively, the positions of p-2, p-1, p, electromagnet zo 19 at the water of the transport rod, the control unit, as well as the search unit for vacancies after the filled positions on the storage tank. The control unit contains locking contacts 5.1 and 6.1, respectively, of sensors 5 and 6 of the presence of products on the prisms 2, closing 7.1, 7.3 and disconnecting 7.2 contacts of sensors 7 of the product on the lift 8, closing contacts 9.1, 9.2, 10.1, 10.2, 11.1, 11.2 sensors 9-11 of the lower position and closing contacts 12.1, 13.1, 40 14.1 sensors 12-14 of the upper position of the lifts 8, the relay 20 turning on all electromagnets of the lifts 8 with the closing contact 20.1, individual relays 21 and 22 turning on each electromagnet. elevator 8, respectively, positions p-2, p-1 with closing 21.1 and 22.1, opening 21.2, and 22.2 and switching contacts 21.3 and 22.3, relay 23 coinciding with closing contact 23.1. The search block for free after filled with 50 items on the accumulator contains a disconnecting contact 5.2 of sensor 5, a disconnecting contact 6.2 and a closing contact 6.3 of the sensor 6 for the presence of products on prisms 2, a closing contact 7.4 of the sensor 7 for the presence of a product in the elevator 55 Relay 24 of the beginning of the cycle with the closing contacts 24.1 and 24.2 in the circuit of the windings, respectively, the relay 20

turning on all electromagnets of lifts and relay 23 coincidence.

The drive works as follows.

In the initial position, the rod 1 is in the leftmost position, and the sensor 15 of the initial position of the transport rod is turned on, which causes the contact 15.1 to close in the circuit of the windings of the relays 21 and 22 of the activation of each elevator electromagnet. Lifts 8 of all positions are downstairs. The bottom position sensors 9-11 are turned on, causing the contacts 9.1, 10.1, 11.1 to close in the windings circuit of the relay 21 and 22 of switching on each hoist electromagnet and the contacts 9.2, 10.2 and 11.2 in the winding circuit of the relay 23.

For the initial position according to the presence of products, such is selected when position n-1 is free, and at positions b-2 and n there are products 3. At the position of position n-2, product 3 presses lever 4, turns it around the axis and turns off The sensor 5 of the presence of the product 3 on the prism of the transport bridge, which causes the opening of the contact 5.1 of the control unit in the winding circuit of the relay 21 for switching on the elevator of position n-2 and the closure of the contact 5.2 of the search unit for the free positions in the winding circuit of the cycle start relay 24. The absence of product 3 at position n-1 causes the lever 4, which includes sensor 6 for the presence of product 3 on the prism of the transport rod, to lower under its weight, which causes contact 6.1 of the control unit in the winding circuit of the relay 22 for switching on position n-1, as well as opening contact 6.2 and closure of contact 6.3 of the block of search for free positions in the winding circuit of the relay 24 start the cycle. At end position n, product 3 shuts down sensor 7 of product presence on elevator 8, which causes opening of contacts 7.3 in the winding circuit of the relay 23 for turning on the elevator of position n-1, in the winding circuit of the relay 23, and closing contact 7.2 of the control unit in the electromagnet 18 of the position hoist p, as well as the opening of contact 7.4 of the block of search for free positions in the winding circuit of the relay 24 of the beginning of the cycle. As a result, the circuit created by contacts 15.1, 6.1, 10.1, the winding of the individual relay 22 turning on the electromagnet of the elevator of position n-1 is energized, the relay closing contact 22.1 becomes self-powered, the closing contact 22.4 excites the winding of the relay 21 of the electromagnet of lifting the position p-2, and break contact 22.2 breaks the circuit of the electromagnet 17 of the elevator position n-1. The opening contact 21.2 relay 21 breaks the electromagnet circuit

nit 16 elevator positions n-2. A circuit created by contacts 5.2 and 6.3 excites the winding of the relay 24 to swing the cycle of the free position search unit, which leads to the closure of the contacts 24.1 and 24.2 in the circuits. winding relay 20 turn on

all electromagnets lifts and relay 23 matches.

According to the circuit created by contacts 15.1 and 24.1, the relay 20 of switching on all the electromagnets of the lifts will be excited, which causes the closure of the contact 20.1. In this case, the circuit created by contacts 20.1 and 7.2, will turn on the electromagnet 18 of the elevator position n, which leads to the lifting of the elevator. In the upper position of the elevator of position n, the sensor 14 of the upper position of the elevator is turned on, which causes the contact 14.1 in the relay circuit 23 to close. As a result, the coil of the relay 23 is energized along the circuit created by the contacts 24.2, 14.1, 22.3, 10.2, 9.2 and further by the contacts of the bottom position sensors of the elevators of all previous positions. This closes the contact 23.1, which leads to the activation of the electromagnet 19 of the rod drive, and this causes the movement of the rod 1 and, accordingly, the transfer of all the products one step to the positions preceding the free position n-1. Thus, the empty position is filled (Fig. 3), and the first position is released during the transport of the items. Further rise

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NIKI 8 of all positions in which there are products 3, are raised, the rod 1 returns to its original position, the lifts of all positions are lowered to the lower position. When the elevator is lowered, unit 3 at position n-1 is placed on the prism 2 of the transport bar. At the same time, it presses the lever 4, turning it around the axis and thereby disconnecting the sensor 6 for the presence of the product in position, which leads to the opening of the contact 6.1 of the control unit in the winding circuit of the relay 22 for switching on the elevator of position n-1, as well as to the closure of contact 6.2 and open contact 6.3 block search for free positions in the circuit of the winding of the relay 24 start of the cycle. As a result, when contact 15.1 of sensor 15 controlling the return of the transport rod to its initial position is closed, relays 22 and 21 will not turn on, their contacts 22.2 and 21.2 in the electromagnets 16 and 17 of the lifts, respectively, of the p-2 and p-1 positions will be closed; Relay 24 of the start of the cycle of the free positions search unit is not turned on and its contacts 24.1 and 24.2 in the relay 20 connection, the switching on of all the electromagnets of the lifts and the relay 23 will be open. This leads to the termination of the drive.

The invention reduces the wear of storage mechanisms and, consequently, increases the reliability and durability of its operation.

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Editor P. Cossey Order 940/16

Compiled by V. Platonov Tehred I. VeresKorrektor I. Muska

Circulation 826 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

INTERSTANCE DIGGING- TEL AUTOMATIC LINE by ed. St. No. 1066781, characterized in that, in order to increase its reliability and durability, an additional search unit for positions after a drive filled with products is added, consisting of parallel circuits, the number of which is equal to the number of positions of the drive, and each of the parallel circuits is formed by a serial connection of the NC contact the product availability sensor at each previous position and the make contact of the product presence sensor at each subsequent position, and the cycle start relay, the winding of which is connected after consecutively to the output of a parallel circuit, and the closing contacts of the start of the cycle relay are connected in series with the windings of the relay for switching on all the electromagnets of the lifts and the coincidence relay of the control unit. Line items FIG. 1 Z213 8 8 >